To set up a Mesh WiFi network around your house, the Mesh unit will need to be paired with the WiFi router. Steps to pair these two devices are as follows:
i. Place the Mesh unit close to the WiFi router (within 2 meters) and power it on
ii. After the Mesh unit starts up, press and hold the WPS buttons of the Mesh unit and the WiFi router for 3 - 5 seconds in turn within 2 minutes
iii. After the WLAN and Internet indicators of the Mesh turns steady blue, the Mesh is connected to the Internet
iv. Move the Mesh to the desired place where you need to expand WiFi and power it on. After the Internet indicator turns steady blue, WiFi is expanded successfully.
For further information please refer here.